selenium的截图功能在chrome下无法实现，但是可以操作滚动条来一屏一屏的截图，然后再合并成一张图，解决方案如下：
def test_capture(url, w_pix,h_pix): try: self.driver.set_window_size(w_pix,h_pix) self.driver.get(url) self.driver.implicitly_wait(5) i = 0 img_list = [] while i<30: js="var q=document.body.scrollTop="+ str(i*wap_pixs[pix][1])+";" self.driver.execute_script(js) time.sleep(1) js1 = "return document.body.scrollHeight-document.body.scrollTop" s= self.driver.execute_script(js1) if h_pix >= s: break else: self.driver.save_screenshot(str(i)+'.png') img_list.append(str(i)+'.png') i += 1 image_merge(img_list) except: print 'error' |
from PIL import Image def image_merge(images, output_dir='', output_name='merge.jpg', restriction_max_width=None, restriction_max_height=None): """垂直合并多张图片 images - 要合并的图片路径列表 ouput_dir - 输出路径 output_name - 输出文件名 restriction_max_width - 限制合并后的图片最大宽度，如果超过将等比缩小 restriction_max_height - 限制合并后的图片最大高度，如果超过将等比缩小 """ def image_resize(img, size=(1500, 1100)): """调整图片大小 """ try: if img.mode not in ('L', 'RGB'): img = img.convert('RGB') img = img.resize(size) except Exception, e: pass return img max_width = 0 total_height = 0 # 计算合成后图片的宽度（以最宽的为准）和高度 for img_path in images: if os.path.exists(img_path): img = Image.open(img_path) width, height = img.size if width > max_width: max_width = width total_height += height # 产生一张空白图 new_img = Image.new('RGB', (max_width, total_height), 255) # 合并 x = y = 0 for img_path in images: if os.path.exists(img_path): img = Image.open(img_path) width, height = img.size new_img.paste(img, (x, y)) y += height if restriction_max_width and max_width >= restriction_max_width: # 如果宽带超过限制 # 等比例缩小 ratio = restriction_max_height / float(max_width) max_width = restriction_max_width total_height = int(total_height * ratio) new_img = image_resize(new_img, size=(max_width, total_height)) if restriction_max_height and total_height >= restriction_max_height: # 如果高度超过限制 # 等比例缩小 ratio = restriction_max_height / float(total_height) max_width = int(max_width * ratio) total_height = restriction_max_height new_img = image_resize(new_img, size=(max_width, total_height)) if not os.path.exists(output_dir): os.makedirs(output_dir) save_path = '%s/%s' % (output_dir, output_name) new_img.save(save_path) for img_path in images: os.remove(img_path) return save_path |
大致就这么个思路
